Mount Pearl North, formerly known as Waterford Valley, is a provincial electoral district for the House of Assembly of Newfoundland and Labrador, Canada. As of 2011, there are 9,622 eligible voters living within the district. This suburban district includes the northern part of the city of Mount Pearl and part of the city of St. John's. The district was created in 2007 using 79 per cent of the old Waterford Valley district and smaller sections of Mount Pearl and Topsail districts. The district was reconfigured in 2015.